Home / 145,005.48-217,507.78-39,824.54

Finding the Fourth Proportional to 145,005.48, 217,507.78 and 39,824.54

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Solution

The fourth proportional to 145,005.48, 217,507.78 and 39,824.54 is: 59,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,005.48 : 217,507.78 = 39,824.54 : x
  2. Step 2: Convert to fraction form
    145,005.48/217,507.78 = 39,824.54/x
  3. Step 3: Cross multiply
    145,005.48x = 217,507.78 × 39,824.54
  4. Step 4: Simplify right side
    145,005.48x = 8,662,147,284.92
  5. Step 5: Solve for x
    x = 8,662,147,284.92/145,005.48
  6. Step 6: Final answer
    x = 59,736.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.